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1 Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
2 NeoPharm Co., Ltd, BVC-307, KRIBB, 52 Oeun-dong, Yuseong-gu, Daejeon 305-333, Republic of Korea
3 Department of Oriental Medicinal Material and Processing College of Life Science, Kyung Hee University, 1 Seocheon, Kihung Yongin, Kyunggi 449-701, Republic of Korea
Correspondence
Wan-Taek Im
wandra{at}kaist.ac.kr
A Gram-negative, aerobic, non-motile, non-spore-forming and rod-shaped bacterium, strain Gsoil 043T, was isolated from soil from a ginseng field in Pocheon province, South Korea. The novel isolate was characterized in order to determine its taxonomic position. On the basis of 16S rRNA gene sequence similarity, strain Gsoil 043T was shown to belong to the family Flexibacteraceae and was related to Dyadobacter fermentans (96.7 %), Dyadobacter crusticola (96.3 %) and Dyadobacter hamtensis (95.8 %). The 16S rRNA gene sequence similarity of the novel strain to other recognized species within the family Flexibacteraceae was less than 87.0 %. The G+C content of genomic DNA was 48 mol%. Phenotypic and chemotaxonomic data (major menaquinone, MK-7; major fatty acids, C16 : 1
7c, iso-C15 : 0 and C16 : 0) supported the affiliation of strain Gsoil 043T to the genus Dyadobacter. The results of physiological and biochemical tests enabled strain Gsoil 043T to be differentiated genotypically and phenotypically from the three Dyadobacter species with validly published names. The novel isolate therefore represents a novel species for which the name Dyadobacter ginsengisoli sp. nov. is proposed, with the type strain Gsoil 043T (=KCTC 12589T=LMG 23409T).
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